Feeding attachment to punch and die presses.



A. L. SCHRAM. FEEDING ATTACHMENT T0 PUNCH AND DIE PRESSES.

' APPLICATION FILED OCT. 6, I914. I

Patented Feb. 8,1916.

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A. L. SCHRAM.

FEEDING ATTACHMENT T0 PUNCH AND DIE PRESSES.-

Patented Feb. 8,1916.

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M Aw c 0 D E L H N 0 H A v C H DI DA A 9 5 Qu I! 1 7 1 II 1 W W I i W x k a THE COLUMBIA PLANOGRAPH ,c0., WASHINGTON, D. c.

ALEXANDER L. sonnnmor nILLsBoao, IL INOIS, Assienon. T0 sonnet/i eLAss MANUFACTURING COMPANY,

MISSOURI.

on s1. LOUIS, MISSOURI, a. .o0n1 oRATIon on:

rn nnine ATTACHMENT T0 PUNC Ann DIE rR-EssE's.

Specification of Letters Patent. Patented Feb. 8,

Application filed-October 6, 1914. Serial ITO/865,296.

To all whom it may concern:

Be it known that I, ALExAr-Tnnn L. SCHRABI, a citizen of the United States, and resident of Hillsboro, Montgomery county, Illinois, have invented certain new and useful Improvements in Feeding Attachments to Punch and Die Presses, of which the following is a specification containing a full, clear, and exact description, reference being had to the accompanying drawings,forming a part hereof.

My invention relates to improvements in feeding attachments for punch and die presses, and the object of my invention is to combine with a press having means for connecting and disconnecting with power,

a material feeding mechanism having a means at the press whereby the feeding may be controlled independently of the press.

With the above purposes in view, my invention consists in certain novel details of construction and arrangement of parts hereinafter fully described, pointed out in my claim and illustrated by the accompany ing drawings, in which: a

Figure 1 is a front elevation of a press and a feeding device showing the independent controls therefor; and Fig. 2 shows in plan the gear drive of the feeding mechanism, the clutch therefor being shown in section.

Referring by numerals to the accompanyumn 9, which supports a tank 10 adapted to contain a lubricant, and in which I mount a plurality of rollers 11 in arcual arrangement for the support of a roll 12 of sheet metal. Contiguous to the tank 10 I provide the shafts 13, one above the other, and mount thereon the feed rollers 14, which are intergeared as at 15.

Arranged lengthwise of the tank 10 is a shaft 16, having the bevel gear connection 17 with one of the shafts 13, and carrying a clutclncomprising flanged disk 18, secured to the shaft '16, to rotate therewith, and a pulley 19, loosely mounted on said shaft. Theouter and inner peripheral faces of these two clutch elements are normally held separated by an extensile coil spring 20,

and in order to bring the elements together to rotate conjolntly I provide the pulley 19 with a hub 21, having an annulus 22 in which the furcated lever 23 engages. This lever 23 1s fulcrumed in a bracket 24: extended downwardly from the extended tank sides bearing the feed roller 14, and is preferably held to its one limit of movement by a spring, such as 25.

26 designates a power shaft, from which belts, such as 27, extend for driving the press and feeding mechanism.

At the left hand side of the press, pivotally secured to the frame 6, is a pedal 28, and extending therefrom to the free end of the lever 2-3 at the feeding mechanism is a flexible connection 29, directed by pulleys 30.

In the practical operation of the press and feeding mechanism shown and as just described in detail, it is to be borne in mind that the direct feed'to the machine is manual and that my feeding attachment, with its control independent of the press, serves to supply the operator with the desired quantity of material from the roll. Among the advantages arising from this feeding mechanism are that the operator is relieved from the labor incident to manually drawing the material from the roll and that the feeding, that is the drawing of the material from its roll and through the body of lubricant in the tank, may be controlled independ= ently of the press, so that the feeding may be proportionate with the demands of the press.

Having thus described my invention, what I claim as new therein and desire to secure of the- United. States tion, a lever connected With the clntch, a name to this specification, in presence of pedally operated lever connected wlth the tWo subscribing Witnesses.

press and-a flexible connection between the "1 e v I lever connected with the clutch and the'lever ALLXANDERL' SCHRAM' connected with the press, substantially as VVitne-sses:

set forth and for the purposes stated. E. L. WALLACE,

In testimony whereof, I have signed my EDWARD E. LONGAN.

-Copies of this patent'may-be obtained for fivecents each, byaddressing the Commissioner of Patents,

Washington, D. C. 

